Water-system.



G. KLAHRE. WATER SYSTEM.

APPLICATION men APR. 29. 1915.

Patented Mar. 6,1917.

GUSTAV KLAHRE, OF CHICAGO, ILLINOIS.

WATER SYSTEM.

Specification of Letters Patent.

Patented Mar. 6, 1917.

Original application filed August 16, 1913, Serial No. 785,152. Dividedand this application filed April 29, 1915. Serial No. 24,781.

To all whom it may concern:

Be it known that I, GUSTAV KLAHRE, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Water Systems; and I do hereby declare that the fol lowing description of my said invention, taken in connection with the accompan ing sheet of drawings, forms a full, clear, an ex-' act specification, which will enable others skilled in the art to which it appertalns to make and use the same.

My invention relates generally to improvements in water systems and it consists, ,essentially, in the novel and peculiar combination of parts and details of construction, as hereinafter first fully set forth and described and then pointed out in the claim.

In the sheet of drawings already referred to, which serves'to illustrate my invention more fully, Figure 1 is a side elevation of a pump such as may be employed in exercisin my invention. Fig. 2 is an end view thereo Fig. 3 is a vertical section of a water relief valve employed in this system. Fig. 4 is a transverse section on line 44 of Fig. 3. Fig. 5 is a vertical section of an upright check valve used in this system for supplying buildings with water. Fig. '6 is a vertical sectional view of a building showing the installation therein of my system of su plying this building with water.

Iuke parts are indicated by the same characters and symbols of reference in all the figures.

It is a well-known fact that in the majority of cities the city water pressure is only sufiicient to supply water to several stories of a building. In higher buildings, it is the general rule to install pumps of sufiicient capacity, usually in the basement or collar,

which pump the city water to the roof of the building into a storage tank thereon located.

Such installations are always expensive, ow-

ing to the heavier structural work or timbering, required to safely support the tank and its load of stored water; and it has often happened that-such tanks or supports for the tanks have collapsed, causing great dam age to the contents of the building. 'lherefore, the aim of my invention is the elimination'of the roof storage tank and to lead a riser, or building-supply pipe to the uppermost story of said bullding and there'close or cap the upper terminal of this supply pipe, and supply this pipe with all the necesbeing drawn from any of the various fixtures,

etc., and without charging water back into the water main, or other source of supply.

I will now proceed to disclose the details of my invention.

P, Fig. 1, is a typical, belt driven, horizontal pump.- This pump, however, is only illustrative of my system of supplying buildings with water, and may be of any preferred construction, whether single, or double acting, single or multi-cylinder, direct,-

acting single or duplex pumps, vertical or horizontal, belt, electric, or steam driven. The especial ty e of pump used will be determined by the particular conditions of service required.

C, is the usual pump cylinder provided with the usual suction and discharge valves, not shown. To this pump cylinder leads the suction pipe 3, suitably connected to thewater main 18, wherein, if desired, a foot valve c v, ma be installed. From the pump cylinder lea s a discharge pipe 12 to the riser or building supply pipe, which I shall hereinafter term service pipe, 18*, which supply pipe furnishes water to the various fixtures, taps, etc., 19. From this discharge pipe '12 leads a branch pipe 10, 9, ba'ck'to the pump cylinder, and this branch pipe is supplied with a water relief valve A, the construction of which is so well known as not to-require special description.

Sufiice it'to say that it is one of the many relief valves sold in the open market, and

pressed andfma'y be adjusted to open under any predetermined pressure within its limits.

and that the relief valve has been adjusted to that the valve proper therein is spring let open when this water pressure has been reached. The pump is then started and will force water into the service pipe 18, until said pipe is full, and the desired hydrostatic pressure has been reached, which pressure is without, at the same time, drawing any water from the water main for the reason that, there being a greater hydrostatic pressure on the valve 02; than the pressure in the water main, such valve cannot open.

The relief valve is adapted to be adjusted to any pressure within its capacity while the pump is operating, so that, if it be so desired, the hydrostatic pressure in the service pipe may be increased for fire or other purposes without stopping the pump. I have already stated that the pum proper may be of any desired design, and will add that the specific arrangement of the circulating pipes in the system as shown in the drawings, may be considerably varied without impairing its efficiency, or departing from the scope of my invention.

Attention is now directed to the fact that in my present system of supplying high buildlngs with water, I dispense with an overhead water tank, and that, while the pump is working when the service pipes are full and under predetermined pressure, no water is being drawn from the source of supply; nor do I return any water to the water main, which in systems where the water is passing through a water meter, is not permitted by the various Water department authorities; nor do I discharge any water into the sewer which is a useless waste, but that in my system I simply circulate the water under the described conditions, from one end of the pump cylinder past the cylinder, through the relief valve, back to the other end of the pump cylinder, without having recourse to any tanks, so that my improved system is characterized by simplicity and effectiveness, and a saving of cost in installation and subsequent maintenance.

Having thus fully described this invention, I claim as new, and desire to secure to myself by Letters Patent of the United States In a system for supplying buildings with water, the combination, with a street main, of a pump, said pump being connected to said street main, said pump having a discharge pipe leading into said building, the upper end of said discharge pipe being capped, there being in said discharge pipe fixtures from which water can be drawn therefrom, a branch pipe leading from said dis charge pipe to the other end of said pump cylinder, a relief valve located in said branch pipe, said relief valve being adjustable for hydrostatic pressure, whereby water forced by said pump into said discharge pipe when the latter is already under its limit of hydrostatic pressure, will be returned to the pump under a pressure equal to that in the discharge pipe.

In testimony that I claim the foregoing as my invention, I have hereunto set my hand.

eustrav KLAH E. 

